./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-23.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-23.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d07b7415c3fe9e96ce75813c6dc74e1ba61589ee27a287636eeb985665ada946 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 17:13:29,194 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 17:13:29,251 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 17:13:29,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 17:13:29,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 17:13:29,286 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 17:13:29,287 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 17:13:29,287 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 17:13:29,288 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 17:13:29,289 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 17:13:29,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 17:13:29,290 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 17:13:29,291 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 17:13:29,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 17:13:29,293 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 17:13:29,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 17:13:29,294 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 17:13:29,294 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 17:13:29,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 17:13:29,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 17:13:29,295 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 17:13:29,298 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 17:13:29,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 17:13:29,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 17:13:29,299 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 17:13:29,299 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 17:13:29,299 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 17:13:29,299 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 17:13:29,300 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 17:13:29,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 17:13:29,300 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 17:13:29,301 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 17:13:29,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 17:13:29,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 17:13:29,302 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 17:13:29,302 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 17:13:29,302 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 17:13:29,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 17:13:29,303 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 17:13:29,303 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 17:13:29,303 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 17:13:29,304 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 17:13:29,304 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d07b7415c3fe9e96ce75813c6dc74e1ba61589ee27a287636eeb985665ada946 [2024-11-16 17:13:29,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 17:13:29,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 17:13:29,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 17:13:29,613 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 17:13:29,613 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 17:13:29,614 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-23.i [2024-11-16 17:13:31,060 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 17:13:31,265 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 17:13:31,267 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-23.i [2024-11-16 17:13:31,281 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/276ec99d1/1bb850ee485242c5b8a47d7818fb4cba/FLAGff894a58d [2024-11-16 17:13:31,301 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/276ec99d1/1bb850ee485242c5b8a47d7818fb4cba [2024-11-16 17:13:31,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 17:13:31,306 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 17:13:31,308 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 17:13:31,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 17:13:31,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 17:13:31,315 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:13:31" (1/1) ... [2024-11-16 17:13:31,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241ff24c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:13:31, skipping insertion in model container [2024-11-16 17:13:31,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:13:31" (1/1) ... [2024-11-16 17:13:31,343 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 17:13:31,545 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-23.i[915,928] [2024-11-16 17:13:31,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 17:13:31,588 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 17:13:31,601 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-23.i[915,928] [2024-11-16 17:13:31,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 17:13:31,629 INFO L204 MainTranslator]: Completed translation [2024-11-16 17:13:31,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:13:31 WrapperNode [2024-11-16 17:13:31,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 17:13:31,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 17:13:31,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 17:13:31,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 17:13:31,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:13:31" (1/1) ... [2024-11-16 17:13:31,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:13:31" (1/1) ... [2024-11-16 17:13:31,672 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 139 [2024-11-16 17:13:31,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 17:13:31,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 17:13:31,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 17:13:31,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 17:13:31,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:13:31" (1/1) ... [2024-11-16 17:13:31,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:13:31" (1/1) ... [2024-11-16 17:13:31,685 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:13:31" (1/1) ... [2024-11-16 17:13:31,696 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 17:13:31,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:13:31" (1/1) ... [2024-11-16 17:13:31,696 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:13:31" (1/1) ... [2024-11-16 17:13:31,700 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:13:31" (1/1) ... [2024-11-16 17:13:31,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:13:31" (1/1) ... [2024-11-16 17:13:31,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:13:31" (1/1) ... [2024-11-16 17:13:31,702 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:13:31" (1/1) ... [2024-11-16 17:13:31,704 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 17:13:31,705 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 17:13:31,705 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 17:13:31,706 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 17:13:31,706 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:13:31" (1/1) ... [2024-11-16 17:13:31,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 17:13:31,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 17:13:31,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 17:13:31,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 17:13:31,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 17:13:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 17:13:31,804 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 17:13:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 17:13:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 17:13:31,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 17:13:31,906 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 17:13:31,914 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 17:13:32,208 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L73: havoc property_#t~ite17#1;havoc property_#t~bitwise14#1;havoc property_#t~ite16#1;havoc property_#t~bitwise15#1; [2024-11-16 17:13:32,244 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-16 17:13:32,245 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 17:13:32,283 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 17:13:32,284 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 17:13:32,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:13:32 BoogieIcfgContainer [2024-11-16 17:13:32,284 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 17:13:32,287 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 17:13:32,287 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 17:13:32,292 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 17:13:32,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 05:13:31" (1/3) ... [2024-11-16 17:13:32,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a1d13f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:13:32, skipping insertion in model container [2024-11-16 17:13:32,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:13:31" (2/3) ... [2024-11-16 17:13:32,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a1d13f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:13:32, skipping insertion in model container [2024-11-16 17:13:32,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:13:32" (3/3) ... [2024-11-16 17:13:32,298 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-23.i [2024-11-16 17:13:32,311 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 17:13:32,312 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 17:13:32,362 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 17:13:32,369 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@65e275b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 17:13:32,369 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 17:13:32,373 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 49 states have internal predecessors, (67), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 17:13:32,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-16 17:13:32,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:32,384 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:32,385 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:32,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:32,390 INFO L85 PathProgramCache]: Analyzing trace with hash 594390050, now seen corresponding path program 1 times [2024-11-16 17:13:32,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:32,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927920404] [2024-11-16 17:13:32,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:32,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:32,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:32,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:32,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:32,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:32,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:32,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:32,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:32,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:32,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:32,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:32,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:32,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:32,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:32,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:32,713 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:32,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:32,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927920404] [2024-11-16 17:13:32,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927920404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:32,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:32,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 17:13:32,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616658852] [2024-11-16 17:13:32,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:32,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 17:13:32,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:32,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 17:13:32,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 17:13:32,743 INFO L87 Difference]: Start difference. First operand has 65 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 49 states have internal predecessors, (67), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 17:13:32,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:32,776 INFO L93 Difference]: Finished difference Result 122 states and 197 transitions. [2024-11-16 17:13:32,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 17:13:32,782 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 91 [2024-11-16 17:13:32,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:32,791 INFO L225 Difference]: With dead ends: 122 [2024-11-16 17:13:32,792 INFO L226 Difference]: Without dead ends: 60 [2024-11-16 17:13:32,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 17:13:32,802 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:32,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 17:13:32,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-16 17:13:32,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-16 17:13:32,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 44 states have internal predecessors, (59), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 17:13:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 87 transitions. [2024-11-16 17:13:32,841 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 87 transitions. Word has length 91 [2024-11-16 17:13:32,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:32,842 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 87 transitions. [2024-11-16 17:13:32,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 17:13:32,842 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 87 transitions. [2024-11-16 17:13:32,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-16 17:13:32,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:32,846 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:32,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 17:13:32,847 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:32,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:32,847 INFO L85 PathProgramCache]: Analyzing trace with hash 594297730, now seen corresponding path program 1 times [2024-11-16 17:13:32,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:32,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573197803] [2024-11-16 17:13:32,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:32,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:33,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,588 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:33,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:33,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573197803] [2024-11-16 17:13:33,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573197803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:33,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:33,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 17:13:33,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148671615] [2024-11-16 17:13:33,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:33,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 17:13:33,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:33,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 17:13:33,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 17:13:33,596 INFO L87 Difference]: Start difference. First operand 60 states and 87 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:33,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:33,760 INFO L93 Difference]: Finished difference Result 109 states and 153 transitions. [2024-11-16 17:13:33,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 17:13:33,761 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2024-11-16 17:13:33,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:33,765 INFO L225 Difference]: With dead ends: 109 [2024-11-16 17:13:33,766 INFO L226 Difference]: Without dead ends: 106 [2024-11-16 17:13:33,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 17:13:33,769 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 63 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:33,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 379 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 17:13:33,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-16 17:13:33,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2024-11-16 17:13:33,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 73 states have (on average 1.3013698630136987) internal successors, (95), 74 states have internal predecessors, (95), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 17:13:33,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 147 transitions. [2024-11-16 17:13:33,803 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 147 transitions. Word has length 91 [2024-11-16 17:13:33,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:33,803 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 147 transitions. [2024-11-16 17:13:33,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:33,803 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 147 transitions. [2024-11-16 17:13:33,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 17:13:33,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:33,810 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:33,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 17:13:33,810 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:33,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:33,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1372065565, now seen corresponding path program 1 times [2024-11-16 17:13:33,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:33,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681936752] [2024-11-16 17:13:33,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:33,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:33,922 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:33,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:33,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681936752] [2024-11-16 17:13:33,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681936752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:33,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:33,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 17:13:33,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74307801] [2024-11-16 17:13:33,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:33,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 17:13:33,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:33,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 17:13:33,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 17:13:33,929 INFO L87 Difference]: Start difference. First operand 102 states and 147 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:33,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:33,978 INFO L93 Difference]: Finished difference Result 202 states and 286 transitions. [2024-11-16 17:13:33,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 17:13:33,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2024-11-16 17:13:33,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:33,981 INFO L225 Difference]: With dead ends: 202 [2024-11-16 17:13:33,981 INFO L226 Difference]: Without dead ends: 103 [2024-11-16 17:13:33,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 17:13:33,983 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 10 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:33,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 150 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 17:13:33,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-16 17:13:33,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 90. [2024-11-16 17:13:33,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 62 states have internal predecessors, (76), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 17:13:33,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 128 transitions. [2024-11-16 17:13:34,000 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 128 transitions. Word has length 94 [2024-11-16 17:13:34,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:34,000 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 128 transitions. [2024-11-16 17:13:34,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:34,001 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 128 transitions. [2024-11-16 17:13:34,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 17:13:34,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:34,003 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:34,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 17:13:34,004 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:34,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:34,004 INFO L85 PathProgramCache]: Analyzing trace with hash 963714891, now seen corresponding path program 1 times [2024-11-16 17:13:34,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:34,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841272758] [2024-11-16 17:13:34,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:34,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:34,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,095 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:34,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:34,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841272758] [2024-11-16 17:13:34,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841272758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:34,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:34,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 17:13:34,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596046241] [2024-11-16 17:13:34,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:34,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 17:13:34,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:34,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 17:13:34,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 17:13:34,100 INFO L87 Difference]: Start difference. First operand 90 states and 128 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:34,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:34,147 INFO L93 Difference]: Finished difference Result 180 states and 256 transitions. [2024-11-16 17:13:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 17:13:34,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2024-11-16 17:13:34,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:34,153 INFO L225 Difference]: With dead ends: 180 [2024-11-16 17:13:34,153 INFO L226 Difference]: Without dead ends: 93 [2024-11-16 17:13:34,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 17:13:34,155 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 40 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:34,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 120 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 17:13:34,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-16 17:13:34,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2024-11-16 17:13:34,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 61 states have (on average 1.2295081967213115) internal successors, (75), 62 states have internal predecessors, (75), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 17:13:34,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2024-11-16 17:13:34,179 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 94 [2024-11-16 17:13:34,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:34,180 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2024-11-16 17:13:34,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:34,180 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2024-11-16 17:13:34,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-16 17:13:34,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:34,182 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:34,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 17:13:34,183 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:34,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:34,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1322470732, now seen corresponding path program 1 times [2024-11-16 17:13:34,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:34,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133336415] [2024-11-16 17:13:34,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:34,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:34,737 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:34,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:34,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133336415] [2024-11-16 17:13:34,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133336415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:34,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:34,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 17:13:34,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49859004] [2024-11-16 17:13:34,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:34,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 17:13:34,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:34,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 17:13:34,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 17:13:34,739 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:34,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:34,950 INFO L93 Difference]: Finished difference Result 122 states and 165 transitions. [2024-11-16 17:13:34,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 17:13:34,951 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 97 [2024-11-16 17:13:34,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:34,952 INFO L225 Difference]: With dead ends: 122 [2024-11-16 17:13:34,953 INFO L226 Difference]: Without dead ends: 119 [2024-11-16 17:13:34,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-16 17:13:34,954 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 28 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:34,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 496 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 17:13:34,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-16 17:13:34,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 101. [2024-11-16 17:13:34,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 72 states have (on average 1.25) internal successors, (90), 73 states have internal predecessors, (90), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 17:13:34,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 142 transitions. [2024-11-16 17:13:34,976 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 142 transitions. Word has length 97 [2024-11-16 17:13:34,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:34,977 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 142 transitions. [2024-11-16 17:13:34,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:34,977 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 142 transitions. [2024-11-16 17:13:34,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 17:13:34,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:34,979 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:34,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 17:13:34,979 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:34,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:34,980 INFO L85 PathProgramCache]: Analyzing trace with hash -512358861, now seen corresponding path program 1 times [2024-11-16 17:13:34,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:34,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294045567] [2024-11-16 17:13:34,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:34,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:35,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,240 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:35,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:35,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294045567] [2024-11-16 17:13:35,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294045567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:35,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:35,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 17:13:35,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946178842] [2024-11-16 17:13:35,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:35,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 17:13:35,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:35,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 17:13:35,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 17:13:35,245 INFO L87 Difference]: Start difference. First operand 101 states and 142 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:35,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:35,529 INFO L93 Difference]: Finished difference Result 151 states and 203 transitions. [2024-11-16 17:13:35,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 17:13:35,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 98 [2024-11-16 17:13:35,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:35,531 INFO L225 Difference]: With dead ends: 151 [2024-11-16 17:13:35,531 INFO L226 Difference]: Without dead ends: 148 [2024-11-16 17:13:35,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-16 17:13:35,532 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 52 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:35,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 559 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 17:13:35,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-16 17:13:35,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 102. [2024-11-16 17:13:35,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 74 states have internal predecessors, (92), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 17:13:35,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2024-11-16 17:13:35,549 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 144 transitions. Word has length 98 [2024-11-16 17:13:35,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:35,549 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 144 transitions. [2024-11-16 17:13:35,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:35,549 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 144 transitions. [2024-11-16 17:13:35,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 17:13:35,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:35,553 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:35,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 17:13:35,553 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:35,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:35,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1985657076, now seen corresponding path program 1 times [2024-11-16 17:13:35,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:35,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957920738] [2024-11-16 17:13:35,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:35,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:35,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:35,952 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:35,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:35,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957920738] [2024-11-16 17:13:35,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957920738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:35,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:35,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 17:13:35,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983503342] [2024-11-16 17:13:35,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:35,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 17:13:35,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:35,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 17:13:35,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 17:13:35,955 INFO L87 Difference]: Start difference. First operand 102 states and 144 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:36,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:36,294 INFO L93 Difference]: Finished difference Result 149 states and 201 transitions. [2024-11-16 17:13:36,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 17:13:36,294 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 98 [2024-11-16 17:13:36,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:36,296 INFO L225 Difference]: With dead ends: 149 [2024-11-16 17:13:36,296 INFO L226 Difference]: Without dead ends: 146 [2024-11-16 17:13:36,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-16 17:13:36,297 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 46 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:36,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 637 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 17:13:36,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-16 17:13:36,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 112. [2024-11-16 17:13:36,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 83 states have (on average 1.2891566265060241) internal successors, (107), 84 states have internal predecessors, (107), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 17:13:36,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 159 transitions. [2024-11-16 17:13:36,311 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 159 transitions. Word has length 98 [2024-11-16 17:13:36,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:36,311 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 159 transitions. [2024-11-16 17:13:36,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:36,311 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 159 transitions. [2024-11-16 17:13:36,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 17:13:36,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:36,312 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:36,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 17:13:36,313 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:36,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:36,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1738554437, now seen corresponding path program 1 times [2024-11-16 17:13:36,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:36,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805639483] [2024-11-16 17:13:36,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:36,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,432 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:36,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:36,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805639483] [2024-11-16 17:13:36,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805639483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:36,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:36,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 17:13:36,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849331703] [2024-11-16 17:13:36,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:36,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 17:13:36,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:36,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 17:13:36,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 17:13:36,435 INFO L87 Difference]: Start difference. First operand 112 states and 159 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:36,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:36,521 INFO L93 Difference]: Finished difference Result 261 states and 370 transitions. [2024-11-16 17:13:36,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 17:13:36,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 99 [2024-11-16 17:13:36,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:36,523 INFO L225 Difference]: With dead ends: 261 [2024-11-16 17:13:36,524 INFO L226 Difference]: Without dead ends: 152 [2024-11-16 17:13:36,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 17:13:36,525 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 26 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:36,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 314 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 17:13:36,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-16 17:13:36,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 122. [2024-11-16 17:13:36,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 93 states have (on average 1.3118279569892473) internal successors, (122), 94 states have internal predecessors, (122), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 17:13:36,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 174 transitions. [2024-11-16 17:13:36,543 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 174 transitions. Word has length 99 [2024-11-16 17:13:36,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:36,544 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 174 transitions. [2024-11-16 17:13:36,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:36,544 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 174 transitions. [2024-11-16 17:13:36,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 17:13:36,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:36,547 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:36,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 17:13:36,547 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:36,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:36,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1881768461, now seen corresponding path program 1 times [2024-11-16 17:13:36,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:36,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357666195] [2024-11-16 17:13:36,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:36,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,675 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:36,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:36,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357666195] [2024-11-16 17:13:36,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357666195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:36,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:36,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 17:13:36,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925723693] [2024-11-16 17:13:36,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:36,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 17:13:36,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:36,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 17:13:36,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 17:13:36,678 INFO L87 Difference]: Start difference. First operand 122 states and 174 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:36,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:36,764 INFO L93 Difference]: Finished difference Result 272 states and 386 transitions. [2024-11-16 17:13:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 17:13:36,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 99 [2024-11-16 17:13:36,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:36,767 INFO L225 Difference]: With dead ends: 272 [2024-11-16 17:13:36,767 INFO L226 Difference]: Without dead ends: 153 [2024-11-16 17:13:36,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 17:13:36,770 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 32 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:36,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 328 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 17:13:36,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-16 17:13:36,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 132. [2024-11-16 17:13:36,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 103 states have (on average 1.3300970873786409) internal successors, (137), 104 states have internal predecessors, (137), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 17:13:36,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 189 transitions. [2024-11-16 17:13:36,783 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 189 transitions. Word has length 99 [2024-11-16 17:13:36,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:36,784 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 189 transitions. [2024-11-16 17:13:36,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:36,784 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 189 transitions. [2024-11-16 17:13:36,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 17:13:36,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:36,787 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:36,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 17:13:36,787 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:36,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:36,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1431459360, now seen corresponding path program 1 times [2024-11-16 17:13:36,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:36,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727091640] [2024-11-16 17:13:36,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:36,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,848 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:36,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:36,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727091640] [2024-11-16 17:13:36,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727091640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:36,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:36,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 17:13:36,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533855367] [2024-11-16 17:13:36,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:36,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 17:13:36,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:36,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 17:13:36,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 17:13:36,851 INFO L87 Difference]: Start difference. First operand 132 states and 189 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:36,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:36,901 INFO L93 Difference]: Finished difference Result 313 states and 441 transitions. [2024-11-16 17:13:36,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 17:13:36,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 100 [2024-11-16 17:13:36,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:36,903 INFO L225 Difference]: With dead ends: 313 [2024-11-16 17:13:36,903 INFO L226 Difference]: Without dead ends: 184 [2024-11-16 17:13:36,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 17:13:36,904 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 50 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:36,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 141 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 17:13:36,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-16 17:13:36,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 171. [2024-11-16 17:13:36,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 128 states have (on average 1.2265625) internal successors, (157), 131 states have internal predecessors, (157), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-16 17:13:36,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 233 transitions. [2024-11-16 17:13:36,917 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 233 transitions. Word has length 100 [2024-11-16 17:13:36,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:36,917 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 233 transitions. [2024-11-16 17:13:36,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:36,918 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 233 transitions. [2024-11-16 17:13:36,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 17:13:36,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:36,919 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:36,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 17:13:36,919 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:36,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:36,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1074859434, now seen corresponding path program 1 times [2024-11-16 17:13:36,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:36,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194716736] [2024-11-16 17:13:36,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:36,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:36,975 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:36,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:36,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194716736] [2024-11-16 17:13:36,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194716736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:36,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:36,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 17:13:36,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925169927] [2024-11-16 17:13:36,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:36,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 17:13:36,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:36,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 17:13:36,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 17:13:36,977 INFO L87 Difference]: Start difference. First operand 171 states and 233 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:37,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:37,026 INFO L93 Difference]: Finished difference Result 332 states and 449 transitions. [2024-11-16 17:13:37,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 17:13:37,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 100 [2024-11-16 17:13:37,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:37,029 INFO L225 Difference]: With dead ends: 332 [2024-11-16 17:13:37,029 INFO L226 Difference]: Without dead ends: 179 [2024-11-16 17:13:37,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 17:13:37,030 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 37 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:37,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 161 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 17:13:37,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-16 17:13:37,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 147. [2024-11-16 17:13:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 110 states have (on average 1.209090909090909) internal successors, (133), 112 states have internal predecessors, (133), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-16 17:13:37,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 197 transitions. [2024-11-16 17:13:37,046 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 197 transitions. Word has length 100 [2024-11-16 17:13:37,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:37,047 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 197 transitions. [2024-11-16 17:13:37,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:37,047 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 197 transitions. [2024-11-16 17:13:37,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-16 17:13:37,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:37,048 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:37,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 17:13:37,048 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:37,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:37,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1956241196, now seen corresponding path program 1 times [2024-11-16 17:13:37,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:37,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452599874] [2024-11-16 17:13:37,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:37,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:37,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:37,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452599874] [2024-11-16 17:13:37,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452599874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:37,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:37,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 17:13:37,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678463554] [2024-11-16 17:13:37,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:37,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 17:13:37,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:37,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 17:13:37,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 17:13:37,497 INFO L87 Difference]: Start difference. First operand 147 states and 197 transitions. Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:37,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:37,789 INFO L93 Difference]: Finished difference Result 178 states and 228 transitions. [2024-11-16 17:13:37,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 17:13:37,790 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 101 [2024-11-16 17:13:37,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:37,791 INFO L225 Difference]: With dead ends: 178 [2024-11-16 17:13:37,791 INFO L226 Difference]: Without dead ends: 175 [2024-11-16 17:13:37,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-16 17:13:37,792 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 29 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:37,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 635 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 17:13:37,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-16 17:13:37,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 171. [2024-11-16 17:13:37,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 130 states have (on average 1.176923076923077) internal successors, (153), 133 states have internal predecessors, (153), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-16 17:13:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 221 transitions. [2024-11-16 17:13:37,806 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 221 transitions. Word has length 101 [2024-11-16 17:13:37,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:37,806 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 221 transitions. [2024-11-16 17:13:37,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:37,807 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 221 transitions. [2024-11-16 17:13:37,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 17:13:37,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:37,808 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:37,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 17:13:37,808 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:37,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:37,808 INFO L85 PathProgramCache]: Analyzing trace with hash 318558747, now seen corresponding path program 1 times [2024-11-16 17:13:37,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:37,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630935842] [2024-11-16 17:13:37,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:37,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:37,882 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:37,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:37,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630935842] [2024-11-16 17:13:37,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630935842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:37,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:37,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 17:13:37,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565846997] [2024-11-16 17:13:37,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:37,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 17:13:37,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:37,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 17:13:37,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 17:13:37,884 INFO L87 Difference]: Start difference. First operand 171 states and 221 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:38,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:38,009 INFO L93 Difference]: Finished difference Result 360 states and 467 transitions. [2024-11-16 17:13:38,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 17:13:38,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 102 [2024-11-16 17:13:38,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:38,011 INFO L225 Difference]: With dead ends: 360 [2024-11-16 17:13:38,011 INFO L226 Difference]: Without dead ends: 211 [2024-11-16 17:13:38,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 17:13:38,012 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 24 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:38,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 270 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 17:13:38,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-16 17:13:38,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 182. [2024-11-16 17:13:38,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 141 states have (on average 1.198581560283688) internal successors, (169), 144 states have internal predecessors, (169), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-16 17:13:38,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 237 transitions. [2024-11-16 17:13:38,029 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 237 transitions. Word has length 102 [2024-11-16 17:13:38,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:38,030 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 237 transitions. [2024-11-16 17:13:38,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:38,030 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 237 transitions. [2024-11-16 17:13:38,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 17:13:38,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:38,032 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:38,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 17:13:38,032 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:38,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:38,033 INFO L85 PathProgramCache]: Analyzing trace with hash 494110545, now seen corresponding path program 1 times [2024-11-16 17:13:38,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:38,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336336345] [2024-11-16 17:13:38,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:38,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,103 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:38,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:38,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336336345] [2024-11-16 17:13:38,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336336345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:38,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:38,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 17:13:38,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385463059] [2024-11-16 17:13:38,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:38,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 17:13:38,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:38,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 17:13:38,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 17:13:38,104 INFO L87 Difference]: Start difference. First operand 182 states and 237 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:38,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:38,238 INFO L93 Difference]: Finished difference Result 370 states and 483 transitions. [2024-11-16 17:13:38,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 17:13:38,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 102 [2024-11-16 17:13:38,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:38,240 INFO L225 Difference]: With dead ends: 370 [2024-11-16 17:13:38,240 INFO L226 Difference]: Without dead ends: 210 [2024-11-16 17:13:38,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 17:13:38,241 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 28 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:38,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 268 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 17:13:38,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-16 17:13:38,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2024-11-16 17:13:38,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 152 states have (on average 1.2105263157894737) internal successors, (184), 155 states have internal predecessors, (184), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-16 17:13:38,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 252 transitions. [2024-11-16 17:13:38,255 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 252 transitions. Word has length 102 [2024-11-16 17:13:38,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:38,255 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 252 transitions. [2024-11-16 17:13:38,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:38,255 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 252 transitions. [2024-11-16 17:13:38,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 17:13:38,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:38,256 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:38,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 17:13:38,257 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:38,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:38,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1231518081, now seen corresponding path program 1 times [2024-11-16 17:13:38,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:38,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657156426] [2024-11-16 17:13:38,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:38,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:38,487 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:38,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:38,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657156426] [2024-11-16 17:13:38,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657156426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:38,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:38,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 17:13:38,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459279133] [2024-11-16 17:13:38,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:38,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 17:13:38,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:38,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 17:13:38,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 17:13:38,489 INFO L87 Difference]: Start difference. First operand 193 states and 252 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:38,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:38,736 INFO L93 Difference]: Finished difference Result 236 states and 297 transitions. [2024-11-16 17:13:38,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 17:13:38,737 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 102 [2024-11-16 17:13:38,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:38,738 INFO L225 Difference]: With dead ends: 236 [2024-11-16 17:13:38,738 INFO L226 Difference]: Without dead ends: 233 [2024-11-16 17:13:38,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-16 17:13:38,739 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 55 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:38,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 732 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 17:13:38,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-16 17:13:38,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 198. [2024-11-16 17:13:38,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 157 states have (on average 1.2101910828025477) internal successors, (190), 160 states have internal predecessors, (190), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-16 17:13:38,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 258 transitions. [2024-11-16 17:13:38,754 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 258 transitions. Word has length 102 [2024-11-16 17:13:38,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:38,755 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 258 transitions. [2024-11-16 17:13:38,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:38,755 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 258 transitions. [2024-11-16 17:13:38,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 17:13:38,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:38,756 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:38,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 17:13:38,757 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:38,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:38,757 INFO L85 PathProgramCache]: Analyzing trace with hash 938115074, now seen corresponding path program 1 times [2024-11-16 17:13:38,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:38,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986719178] [2024-11-16 17:13:38,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:38,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,203 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:39,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:39,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986719178] [2024-11-16 17:13:39,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986719178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:39,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:39,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 17:13:39,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491073904] [2024-11-16 17:13:39,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:39,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 17:13:39,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:39,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 17:13:39,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-16 17:13:39,206 INFO L87 Difference]: Start difference. First operand 198 states and 258 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:39,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:39,582 INFO L93 Difference]: Finished difference Result 239 states and 302 transitions. [2024-11-16 17:13:39,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 17:13:39,582 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 102 [2024-11-16 17:13:39,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:39,584 INFO L225 Difference]: With dead ends: 239 [2024-11-16 17:13:39,584 INFO L226 Difference]: Without dead ends: 236 [2024-11-16 17:13:39,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-16 17:13:39,585 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 44 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:39,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 893 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 17:13:39,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-16 17:13:39,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 188. [2024-11-16 17:13:39,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 147 states have (on average 1.217687074829932) internal successors, (179), 150 states have internal predecessors, (179), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-16 17:13:39,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 247 transitions. [2024-11-16 17:13:39,600 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 247 transitions. Word has length 102 [2024-11-16 17:13:39,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:39,600 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 247 transitions. [2024-11-16 17:13:39,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:39,601 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 247 transitions. [2024-11-16 17:13:39,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 17:13:39,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:39,602 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:39,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 17:13:39,602 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:39,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:39,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1170246932, now seen corresponding path program 1 times [2024-11-16 17:13:39,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:39,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129846544] [2024-11-16 17:13:39,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:39,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,648 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:39,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:39,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129846544] [2024-11-16 17:13:39,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129846544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:39,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:39,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 17:13:39,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380032229] [2024-11-16 17:13:39,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:39,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 17:13:39,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:39,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 17:13:39,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 17:13:39,650 INFO L87 Difference]: Start difference. First operand 188 states and 247 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:39,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:39,707 INFO L93 Difference]: Finished difference Result 398 states and 525 transitions. [2024-11-16 17:13:39,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 17:13:39,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 103 [2024-11-16 17:13:39,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:39,709 INFO L225 Difference]: With dead ends: 398 [2024-11-16 17:13:39,709 INFO L226 Difference]: Without dead ends: 232 [2024-11-16 17:13:39,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 17:13:39,710 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 41 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:39,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 169 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 17:13:39,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-16 17:13:39,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 197. [2024-11-16 17:13:39,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 156 states have (on average 1.2115384615384615) internal successors, (189), 159 states have internal predecessors, (189), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-16 17:13:39,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 257 transitions. [2024-11-16 17:13:39,727 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 257 transitions. Word has length 103 [2024-11-16 17:13:39,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:39,727 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 257 transitions. [2024-11-16 17:13:39,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:39,727 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 257 transitions. [2024-11-16 17:13:39,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 17:13:39,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:39,729 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:39,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 17:13:39,729 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:39,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:39,729 INFO L85 PathProgramCache]: Analyzing trace with hash -481472094, now seen corresponding path program 1 times [2024-11-16 17:13:39,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:39,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585591105] [2024-11-16 17:13:39,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:39,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:39,787 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:39,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:39,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585591105] [2024-11-16 17:13:39,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585591105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:39,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:39,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 17:13:39,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689957135] [2024-11-16 17:13:39,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:39,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 17:13:39,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:39,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 17:13:39,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 17:13:39,789 INFO L87 Difference]: Start difference. First operand 197 states and 257 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:39,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:39,844 INFO L93 Difference]: Finished difference Result 390 states and 506 transitions. [2024-11-16 17:13:39,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 17:13:39,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 103 [2024-11-16 17:13:39,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:39,846 INFO L225 Difference]: With dead ends: 390 [2024-11-16 17:13:39,846 INFO L226 Difference]: Without dead ends: 215 [2024-11-16 17:13:39,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 17:13:39,848 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 46 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:39,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 151 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 17:13:39,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-16 17:13:39,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 185. [2024-11-16 17:13:39,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 144 states have (on average 1.1527777777777777) internal successors, (166), 147 states have internal predecessors, (166), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-16 17:13:39,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 234 transitions. [2024-11-16 17:13:39,864 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 234 transitions. Word has length 103 [2024-11-16 17:13:39,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:39,864 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 234 transitions. [2024-11-16 17:13:39,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:39,865 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 234 transitions. [2024-11-16 17:13:39,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-16 17:13:39,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:39,866 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:39,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 17:13:39,867 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:39,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:39,867 INFO L85 PathProgramCache]: Analyzing trace with hash -620903180, now seen corresponding path program 1 times [2024-11-16 17:13:39,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:39,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855356082] [2024-11-16 17:13:39,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:39,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,278 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 17:13:40,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:40,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855356082] [2024-11-16 17:13:40,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855356082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 17:13:40,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 17:13:40,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 17:13:40,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160489749] [2024-11-16 17:13:40,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 17:13:40,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 17:13:40,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:40,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 17:13:40,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 17:13:40,281 INFO L87 Difference]: Start difference. First operand 185 states and 234 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:40,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:40,569 INFO L93 Difference]: Finished difference Result 211 states and 261 transitions. [2024-11-16 17:13:40,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 17:13:40,569 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 105 [2024-11-16 17:13:40,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:40,571 INFO L225 Difference]: With dead ends: 211 [2024-11-16 17:13:40,571 INFO L226 Difference]: Without dead ends: 208 [2024-11-16 17:13:40,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-16 17:13:40,572 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 19 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:40,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 595 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 17:13:40,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-16 17:13:40,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 192. [2024-11-16 17:13:40,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 151 states have (on average 1.1456953642384107) internal successors, (173), 154 states have internal predecessors, (173), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-16 17:13:40,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 241 transitions. [2024-11-16 17:13:40,585 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 241 transitions. Word has length 105 [2024-11-16 17:13:40,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:40,586 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 241 transitions. [2024-11-16 17:13:40,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 17:13:40,586 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 241 transitions. [2024-11-16 17:13:40,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-16 17:13:40,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 17:13:40,587 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:40,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 17:13:40,587 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 17:13:40,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 17:13:40,588 INFO L85 PathProgramCache]: Analyzing trace with hash 403657857, now seen corresponding path program 1 times [2024-11-16 17:13:40,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 17:13:40,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348141878] [2024-11-16 17:13:40,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:40,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 17:13:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 17:13:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 17:13:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 17:13:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 17:13:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 17:13:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 17:13:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 17:13:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 17:13:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 17:13:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 17:13:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 17:13:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 17:13:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 17:13:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 17:13:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:40,991 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-16 17:13:40,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 17:13:40,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348141878] [2024-11-16 17:13:40,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348141878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 17:13:40,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898570023] [2024-11-16 17:13:40,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 17:13:40,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 17:13:40,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 17:13:40,994 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 17:13:40,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 17:13:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 17:13:41,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-16 17:13:41,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 17:13:41,371 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-16 17:13:41,371 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 17:13:41,804 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-16 17:13:41,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898570023] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 17:13:41,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 17:13:41,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2024-11-16 17:13:41,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584272924] [2024-11-16 17:13:41,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 17:13:41,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 17:13:41,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 17:13:41,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 17:13:41,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2024-11-16 17:13:41,806 INFO L87 Difference]: Start difference. First operand 192 states and 241 transitions. Second operand has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 17:13:42,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 17:13:42,318 INFO L93 Difference]: Finished difference Result 305 states and 366 transitions. [2024-11-16 17:13:42,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 17:13:42,319 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 105 [2024-11-16 17:13:42,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 17:13:42,320 INFO L225 Difference]: With dead ends: 305 [2024-11-16 17:13:42,320 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 17:13:42,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 226 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=698, Unknown=0, NotChecked=0, Total=870 [2024-11-16 17:13:42,321 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 163 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 17:13:42,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 449 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 17:13:42,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 17:13:42,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 17:13:42,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 17:13:42,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 17:13:42,323 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2024-11-16 17:13:42,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 17:13:42,323 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 17:13:42,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 17:13:42,323 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 17:13:42,323 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 17:13:42,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 17:13:42,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 17:13:42,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 17:13:42,534 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 17:13:42,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 17:13:48,244 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 17:13:48,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 05:13:48 BoogieIcfgContainer [2024-11-16 17:13:48,265 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 17:13:48,266 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 17:13:48,266 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 17:13:48,266 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 17:13:48,266 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:13:32" (3/4) ... [2024-11-16 17:13:48,269 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 17:13:48,272 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-16 17:13:48,278 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-16 17:13:48,280 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-16 17:13:48,281 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 17:13:48,281 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 17:13:48,387 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 17:13:48,387 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 17:13:48,387 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 17:13:48,388 INFO L158 Benchmark]: Toolchain (without parser) took 17082.17ms. Allocated memory was 163.6MB in the beginning and 522.2MB in the end (delta: 358.6MB). Free memory was 85.1MB in the beginning and 466.4MB in the end (delta: -381.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 17:13:48,388 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 163.6MB. Free memory is still 130.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 17:13:48,388 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.09ms. Allocated memory is still 163.6MB. Free memory was 84.8MB in the beginning and 130.1MB in the end (delta: -45.3MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2024-11-16 17:13:48,389 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.74ms. Allocated memory is still 163.6MB. Free memory was 130.1MB in the beginning and 128.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 17:13:48,389 INFO L158 Benchmark]: Boogie Preprocessor took 31.33ms. Allocated memory is still 163.6MB. Free memory was 128.0MB in the beginning and 125.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 17:13:48,392 INFO L158 Benchmark]: IcfgBuilder took 579.06ms. Allocated memory is still 163.6MB. Free memory was 125.9MB in the beginning and 119.9MB in the end (delta: 6.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-16 17:13:48,392 INFO L158 Benchmark]: TraceAbstraction took 15977.90ms. Allocated memory was 163.6MB in the beginning and 522.2MB in the end (delta: 358.6MB). Free memory was 119.9MB in the beginning and 472.7MB in the end (delta: -352.8MB). Peak memory consumption was 303.6MB. Max. memory is 16.1GB. [2024-11-16 17:13:48,393 INFO L158 Benchmark]: Witness Printer took 122.14ms. Allocated memory is still 522.2MB. Free memory was 472.7MB in the beginning and 466.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-16 17:13:48,394 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 163.6MB. Free memory is still 130.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.09ms. Allocated memory is still 163.6MB. Free memory was 84.8MB in the beginning and 130.1MB in the end (delta: -45.3MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.74ms. Allocated memory is still 163.6MB. Free memory was 130.1MB in the beginning and 128.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.33ms. Allocated memory is still 163.6MB. Free memory was 128.0MB in the beginning and 125.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 579.06ms. Allocated memory is still 163.6MB. Free memory was 125.9MB in the beginning and 119.9MB in the end (delta: 6.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 15977.90ms. Allocated memory was 163.6MB in the beginning and 522.2MB in the end (delta: 358.6MB). Free memory was 119.9MB in the beginning and 472.7MB in the end (delta: -352.8MB). Peak memory consumption was 303.6MB. Max. memory is 16.1GB. * Witness Printer took 122.14ms. Allocated memory is still 522.2MB. Free memory was 472.7MB in the beginning and 466.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 65 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.2s, OverallIterations: 20, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 867 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 833 mSDsluCounter, 7530 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5703 mSDsCounter, 116 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3183 IncrementalHoareTripleChecker+Invalid, 3299 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 116 mSolverCounterUnsat, 1827 mSDtfsCounter, 3183 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 961 GetRequests, 817 SyntacticMatches, 4 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=15, InterpolantAutomatonStates: 135, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 20 MinimizatonAttempts, 428 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 2091 NumberOfCodeBlocks, 2091 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2174 ConstructedInterpolants, 0 QuantifiedInterpolants, 4043 SizeOfPredicates, 8 NumberOfNonLiveVariables, 235 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 22 InterpolantComputations, 19 PerfectInterpolantSequences, 7990/8008 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 79]: Location Invariant Derived location invariant: null - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((cond != 0) && (((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_2 == \old(var_1_2))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8)))) RESULT: Ultimate proved your program to be correct! [2024-11-16 17:13:48,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE